MUON/mapping/AliMpVPainter.cxx

   1 // $Id$
   2 // Category: graphics
   3 //
   4 // Class AliMpVPainter
   5 // --------------
   6 // Class for drawing objects into canvas
   7 //
   8 // Authors: David Guez, IPN Orsay
   9
  10 #include <TROOT.h>
  11
  12 #include "AliMpVPainter.h"
  13 #include "AliMpGraphContext.h"
  14 #include "AliMpSector.h"
  15 #include "AliMpRow.h"
  16 #include "AliMpZone.h"
  17 #include "AliMpSubZone.h"
  18 #include "AliMpVRowSegment.h"
  19 #include "AliMpMotifPosition.h"
  20 #include "AliMpSectorPainter.h"
  21 #include "AliMpRowPainter.h"
  22 #include "AliMpZonePainter.h"
  23 #include "AliMpSubZonePainter.h"
  24 #include "AliMpRowSegmentPainter.h"
  25 #include "AliMpMotifPainter.h"
  26
  27 ClassImp(AliMpVPainter)
  28
  29 //_______________________________________________________________________
  30 AliMpVPainter::AliMpVPainter()
  31   : TObject(),
  32     fColor(2)
  33 {
  34   // Default constructor
  35   AliMpGraphContext *gr = AliMpGraphContext::Instance();
  36   fPadPosition  =  gr->GetPadPosition();
  37   fPadDimensions =  gr->GetPadDimensions();
  38   fColor=gr->GetColor();
  39   fTrashList = new TList;
  40 }
  41
  42 //_______________________________________________________________________
  43 AliMpVPainter::~AliMpVPainter()
  44 {
  45   // Default destructor
  46   if (fTrashList){
  47     fTrashList->Delete();
  48     delete fTrashList;
  49   }
  50 }
  51
  52 //_______________________________________________________________________
  53 Bool_t AliMpVPainter::IsInside(const TVector2 &point,const TVector2& pos,const TVector2& dim)
  54 {
  55   // does the point <point> inside the area (pos,dim)
  56   return ( (TMath::Abs(point.X()-pos.X())<dim.X() ) && (TMath::Abs(point.Y()-pos.Y())<dim.Y() ) );
  57 }
  58
  59 //_______________________________________________________________________
  60 Int_t AliMpVPainter::DistancetoPrimitive(Int_t x, Int_t y)
  61 {
  62   // dist to the center if (x,y) is inside the box defined by (fPadPosition,fPadDimensions)
  63   // 9999 otherwise
  64    TVector2 point = TVector2(gPad->AbsPixeltoX(x), gPad->AbsPixeltoY(y));
  65    if ( IsInside(point,fPadPosition,fPadDimensions))
  66      return (Int_t)(point-fPadPosition).Mod();
  67    else
  68      return 9999;
  69 }
  70
  71 //_______________________________________________________________________
  72 void AliMpVPainter::DumpObject() const
  73 {
  74   // Dump the painted object
  75 }
  76
  77 //_______________________________________________________________________
  78 TObject* AliMpVPainter::Clone(const char* newname) const
  79 {
  80   // create a clone of this object
  81   AliMpVPainter *newobj = (AliMpVPainter *)TObject::Clone(newname);
  82   if (!newobj) return 0;
  83   AliMpGraphContext *gr = AliMpGraphContext::Instance();
  84   newobj->fPadPosition  =  gr->GetPadPosition();
  85   newobj->fPadDimensions =  gr->GetPadDimensions();
  86   return newobj;
  87 }
  88
  89 //_______________________________________________________________________
  90 TObject* AliMpVPainter::DrawClone(Option_t* option) const
  91 {
  92   TVirtualPad *pad = gROOT->GetSelectedPad();
  93   TVirtualPad *padsav = gPad;
  94
  95   TObject *newobj = Clone();
  96
  97   if (!newobj) return 0;
  98
  99   if (pad) pad->cd();
 100   newobj->Draw(option);
 101   if (padsav) padsav->cd();
 102   return newobj;
 103 }
 104
 105 //_______________________________________________________________________
 106 AliMpVPainter *AliMpVPainter::CreatePainter(TObject *object)
 107 {
 108   // create a new painter, which correspond to the
 109   // class of object
 110   AliMpVPainter *painter=0;
 111   if (object->InheritsFrom(AliMpSector::Class()))
 112     painter = new AliMpSectorPainter((AliMpSector *)object);
 113   else if (object->InheritsFrom(AliMpZone::Class()))
 114     painter = new AliMpZonePainter((AliMpZone *)object);
 115   else if (object->InheritsFrom(AliMpSubZone::Class()))
 116     painter = new AliMpSubZonePainter((AliMpSubZone *)object);
 117   else if (object->InheritsFrom(AliMpRow::Class()))
 118     painter = new AliMpRowPainter((AliMpRow *)object);
 119   else if (object->InheritsFrom(AliMpVRowSegment::Class()))
 120     painter = new AliMpRowSegmentPainter((AliMpVRowSegment *)object);
 121   else if (object->InheritsFrom(AliMpMotifPosition::Class()))
 122     painter = new AliMpMotifPainter((AliMpMotifPosition *)object);
 123
 124   return painter;
 125 }
 126
 127 //_______________________________________________________________________
 128 void AliMpVPainter::AddPainter(AliMpVPainter *painter)
 129 {
 130   // add a painter to the list of painters (private)
 131   fTrashList->Add(painter);
 132 }
 133
 134
 135 //_______________________________________________________________________
 136 AliMpVPainter *AliMpVPainter::DrawObject(TObject *object,Option_t *option)
 137 {
 138   // Draw the object
 139   // return the AliMpVPainter object created for the drawing
 140   AliMpVPainter *painter=CreatePainter(object);
 141
 142   if (painter){
 143     painter->Draw(option);
 144     AddPainter(painter);
 145   }
 146   return painter;
 147 }
 148
 149 //_______________________________________________________________________
 150 void AliMpVPainter::InitGraphContext()
 151 {
 152   // Set the pad and real area of the graphic context to
 153   // the one stored in this painter
 154
 155   AliMpGraphContext *gr = AliMpGraphContext::Instance();
 156   gr->SetPadPosition(fPadPosition);
 157   gr->SetPadDimensions(fPadDimensions);
 158   gr->SetRealPosition(GetPosition());
 159   gr->SetRealDimensions(GetDimensions());
 160   gVirtualX->SetFillColor(fColor);
 161   gVirtualX->SetTextColor(1);
 162   gVirtualX->SetLineColor(1);
 163 }
 164
 165 //_______________________________________________________________________
 166 void AliMpVPainter::PaintWholeBox(Bool_t fill)
 167 {
 168   // Paint the box around the total pad area given in this painter
 169   // fill it or bnot following the parameter value
 170
 171   Double_t x1,y1,x2,y2;
 172   x1 = fPadPosition.X()-fPadDimensions.X();
 173   y1 = fPadPosition.Y()-fPadDimensions.Y();
 174   x2 = fPadPosition.X()+fPadDimensions.X();
 175   y2 = fPadPosition.Y()+fPadDimensions.Y();
 176
 177   Style_t sty = gVirtualX->GetFillStyle();
 178   gVirtualX->SetFillStyle(fill?1:0);
 179   gPad->PaintBox(x1,y1,x2,y2);
 180   gVirtualX->SetFillStyle(0);
 181   gPad->PaintBox(x1,y1,x2,y2);
 182   gVirtualX->SetFillStyle(sty);
 183 }
 184
 185 //_______________________________________________________________________
 186 TVector2 AliMpVPainter::RealToPad(const TVector2& realPos)
 187 {
 188 // transform a real position into its equivalent position in a canvas
 189
 190   AliMpGraphContext *gr = AliMpGraphContext::Instance();
 191   gr->Push();
 192   gr->SetPadPosition(fPadPosition);
 193   gr->SetPadDimensions(fPadDimensions);
 194   gr->SetRealPosition(GetPosition());
 195   gr->SetRealDimensions(GetDimensions());
 196
 197
 198   TVector2 ans = gr->RealToPad(realPos);
 199   gr->Pop();
 200   return ans;
 201 }